Four people are dead, including a wrong-way driver, in three separate overnight crashes during icy conditions on a frigid New Year's Day, according to Dallas police.

The first accident occurred at 12:33 a.m. on Interstate 35E south of Dallas when an unidentified man driving a 2013 Hyundai Elantra southbound in the northbound lanes crashed into a 2012 Ford Expedition driven by a 34-year-old man at East Wheatland Road.

The man driving the wrong way died at the scene. The other driver, whom police did not identify because next of kin have not been contacted, was pronounced dead at the hospital.

In a separate crash, the driver of a 2015 black Dodge Challenger was killed at 5:20 a.m. when the car hit a curb and slammed into a large light pole while rounding a curve in the 200 block of Regal Row north of Irving Boulevard, police said. The car caught fire. Next of kin has not been notified.

The car's registered owner called 911 at 7:50 a.m. to report his vehicle stolen from the XTC Cabaret at 8500 N. Stemmons Freeway, police said.

Ice covered part of the overpass of U.S. Highway 67 over Hampton Road in Dallas on Sunday. Dallas Fire-Rescue was waiting for sand trucks. (Irwin Thompson/Staff Photographer)

The third fatal crash happened at 5:25 a.m. Monday on LBJ Freeway when a car plowed into other vehicles that stopped at an accident scene, police said.

The deadly chain of events began when a 1993 red Toyota Corolla driven by an unknown man crashed into the median wall while headed eastbound on the highway between Hillcrest and Coit roads.

The car ended up partially on the shoulder and partially in the inside left lane. The driver got out and stood by his car, and two other motorists stopped to help: a 21-year-old driving a silver Hyundai and an off-duty Garland fireman.

The driver of the Hyundai got into the Toyota to look for the driver's cellphone when a black 2012 Chevy Malibu traveling eastbound on LBJ Freeway crashed into the Hyundai and the Toyota and the Toyota's driver.

The Toyota driver died at the scene. His next of kin has not been contacted.

The Hyundai driver was taken to the hospital with a broken arm and head wounds. The off-duty fireman jumped over the median wall and was not injured, police said.

The 26-year-old man driving the Chevy Malibu was treated at the scene for minor injuries. He was released and faces a possible charge of criminal negligent homicide, police said.

Police did not name anyone involved.

Due to ice and wrecks, Dallas Sheriff officers direct traffic off Interstate 20 at the Highway 67 on Sunday afternoon in Dallas on December 31, 2017. (Irwin Thompson/Staff Photographer)

(Irwin Thompson/Staff Photographer)

A wind chill advisory was in effect for several counties at the time, including Denton and Collin, according to the National Weather Service.

McKinney police reported responding to more than 20 single-vehicle crashes on U.S. Highway 380 and North Central Expressway on Sunday morning. Many of the crashes involved drivers going too fast, the agency said.

The Fort Worth Fire Department and the Carrollton Police Department reported that city vehicles were damaged Sunday after they were hit by motorists. No one was injured.

"We had multiple dozens of minor accidents where the drivers exchanged insurance information or it was a single vehicle minor accident and the driver or occupants were not injured," Fort Worth police Officer Daniel Segura said.

Hurst police posted a video to Facebook showing an officer standing next to vehicle wreckage on an exit ramp. The video shows the officer slipping on the icy ground and nearly being hit by another vehicle that skidded out of control toward him.

MedStar, the ambulance service for Fort Worth and other cities, reported 170 crashes with injuries, including 26 rollovers, and 23 falls related to ice between 7 a.m. and 9 p.m. Sunday.